ivsopar.obspm.fr

Radio source coordinate time series

 

 

1656+348

Data
SIMBAD - NED - LQAC
MOJAVE - Astrogeo - BVID
Aladin - SDSS

Right ascension: 254.5059133063444°
Declination: 34.7245561509502°
No. sessions: 19
No. delays: 550
Defining: No
RMS(α cos δ) = 0.2966 mas
RMS(δ) = 0.4221 mas
Cleaned No. sessions: 19
Cleaned RMS(α cos δ) = 0.2966 mas
Cleaned RMS(δ) = 0.4221 mas

Note: Cleaning is a simple outlier elimination algorithm to remove bad sessions. Points whose distance to the mean scaled by the error is larger than 3 are iteratively deleted. The cleaned rms are provided as is and should be taken with some care, especially if the number of sessions is small.